Node.js is increasingly becoming a go-to technology for multiple companies across the globe. As Node.js emphasizes on concurrency, speed, and intensive data exchange along with employing push technology over web sockets, it has helped companies to build various applications such as social media apps, video and text chat engines, real-time tracking apps, online games and collaboration tools. We have mentioned below some high-profile examples of companies using Node.js for building their primary application: Netflix Netflix is arguably the biggest streaming media and VOD provider in the world. It uses copious amounts of A/B testing to run its high-capacity data-driven platform and deliver a rich experience to over 104 million subscribers worldwide. With an array of packages considered every push cycle often lead to conditional dependency and scalability glitches. It was therefore important for the company to leverage a lightweight and fast platform like Node.js, which re